JPH0241918U

JPH0241918U -

Info

Publication number: JPH0241918U
Application number: JP11958488U
Authority: JP
Priority date: 1988-09-12
Filing date: 1988-09-12
Publication date: 1990-03-22

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を説明するための断
面を含む要部正面図である。３：ハウジング、４：加熱筒、４Ａ：加熱筒内
孔、５：螺合部、６：フランジ、７：スクリユ、
７Ａ：カム部、２０：リミツトスイツチ、２１：
リミツトスイツチ、３０：原料供給シリンダ、３
０Ａ：原料供給シリンダ内孔、４１：作動シリン
ダ、４３：原料供給プランジヤ。 FIG. 1 is a front view of main parts including a cross section for explaining one embodiment of the present invention. 3: housing, 4: heating cylinder, 4A: heating cylinder inner hole, 5: threaded part, 6: flange, 7: screw,
7A: Cam part, 20: Limit switch, 21:
Limit switch, 30: Raw material supply cylinder, 3
0A: Raw material supply cylinder inner hole, 41: Working cylinder, 43: Raw material supply plunger.

補正平１．６．１９実用新案登録請求の範囲を次のように補正する
。Amendment June 19, 1999 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】加熱筒の基部を射出装置のハウジングに固定し
、該加熱筒の中心に設けた内孔に通じる原料供給
シリンダと、該原料供給シリンダの内孔に原料の
逆流を防止する程度の隙間を保つて往復動可能に
挿嵌した原料供給プランジヤと、該原料供給プラ
ンジヤを往復動させるための作動シリンダとを設
け、前記原料供給シリンダの内孔の内径寸法より
僅かに長い長さに亘つてスクリユフライトを設け
たスクリユを前記加熱筒の内孔に回転且つ往復動
可能に挿嵌し、且つ該スクリユを強制後退させる
手段を設け、更に原料供給シリンダ内の原料を前
記加熱筒内におけるスクリユ前方の空間Ｖに移送
可能とするスクリユの位置Ｓを検出する手段と、
該空間Ｖに貯留された原料の充満度を密にするた
めに位置Ｓからさらにスクリユが後退する限度位
置Ｐを検出する手段を設けたことを特徴とするＢ
ＭＣ射出成形機。[Claims for Utility Model Registration] The base of the heating cylinder is fixed to the housing of the injection device, and there is a raw material supply cylinder that communicates with an inner hole provided at the center of the heating cylinder, and a backflow of the raw material into the inner hole of the raw material supply cylinder. A raw material supply plunger is inserted so as to be able to reciprocate while maintaining a gap sufficient to prevent the problem, and an actuating cylinder for reciprocating the raw material supply plunger is provided , the cylinder being slightly longer than the inner diameter of the inner hole of the raw material supply cylinder. A screw provided with a screw light over its length is inserted into the inner hole of the heating cylinder so as to be rotatable and reciprocating, and means for forcibly retracting the screw is provided, and furthermore, the raw material in the raw material supply cylinder is means for detecting the position S of the screw that can be transferred to the space V in front of the screw in the heating cylinder;
B characterized in that a means is provided for detecting a limit position P at which the screw further retreats from position S in order to densely fill the space V with the raw material stored therein.
MC injection molding machine.

Claims

[Scope of utility model registration request]

The base of the heating cylinder is fixed to the housing of the injection device, and the heating cylinder is inserted into the inner hole of the raw material supply cylinder that communicates with the inner hole provided in the center of the heating cylinder so as to be able to reciprocate while maintaining a gap sufficient to prevent backflow of the raw material. In an injection molding machine equipped with a raw material supply plunger and an actuation cylinder for reciprocating the raw material supply plunger,
A screw provided with a screw flight over a length slightly longer than the inner diameter of the inner hole of the raw material supply cylinder is inserted into the inner hole of the heating cylinder so that it can rotate and reciprocate, and the screw is forcibly retracted. Further, means for detecting the position S of the screw that enables the raw material in the raw material supply cylinder to be transferred to the space V in front of the screw in the heating cylinder, and a means for detecting the filling degree of the raw material stored in the space V. An injection molding machine characterized by being provided with means for detecting a limit position P at which the screw is further retreated from the position S in order to increase the density.